/*
 * JHeuristics - The Java Meta-Heuritics Library
 * Copyright (C) 2004-2005, Universidade Federal de Campina Grande. All rights reserved.
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
package org.jheuristics.util;

/**
 * TODO
 *
 * @author Marcell Manfrin, marcell@ourgrid.org, Jan 9, 2006
 */
public final class MathUtils {

	/**
	 * TODO
	 * 
	 * @param values
	 */
	public static double sum(double[] values) {
		test(values);
		double result = 0.;
		for (int i = 0; i < values.length; i++) {
			result += values[i];
		}
		return result;
	}

	/**
	 * TODO
	 * 
	 * @param values
	 */
	public static double max(double[] values) {
		test(values);
		double result = Double.MIN_VALUE;
		for (int i = 0; i < values.length; i++) {
			if (values[i] > result) {
				result = values[i];
			}
		}
		return result;
	}

	/**
	 * TODO
	 * 
	 * @param values
	 */
	public static double min(double[] values) {
		test(values);
		double result = Double.MAX_VALUE;
		for (int i = 0; i < values.length; i++) {
			if (values[i] < result) {
				result = values[i];
			}
		}
		return result;
	}

	/**
	 * TODO
	 * 
	 * @param values
	 */
	private static void test(double[] values) {
		if (null == values) {
			// TODO: ERROR MSG
			throw new NullPointerException();
		}
	}

}
